Improvement in apparatus for enameling moldings



UNITED STATES PATENT QFFICE.

.WASHINGTON W'ALLIGK, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN APPARATUS FOR ENAMELING MOLDINGS.

Specification forming part of Letters Patent No. 163,825, dated May 25,1875; application filed October 16, 1874. I

To all whom it may concern:

Be it known that I, WASHINGTON WALLIOK, of Philadelphia, Pennsylvania,have invented certain Improvements in the Manufacture of EnameledMoldings, of which the following is a specification:

The object of my invention is a rapid and economical production ofenameled moldings of the character shown in Figures 1, 2, and 3 of theaccompanying drawing; and this object I attain in the manner and by theapparatus described hereafter.

In order that my invention may be thoroughly understood it will beadvisable to refer to the mode ordinarily practiced of making enameledmoldings of this class.

In making the molding, Fig. 2, for instance, it is usual to take a stripof wood of the form shown in Fig. 7 and pass it several times throughwhat is well known as the marcherbox, the strip resting on the bottom ofthe reservoir containing the enameling composition. After the propernumber of coats of enamel have been given to the strip the latter is cutaway from the under side to the line 1 2, and the strip is then planedaway by hand, so as not to disturb the enamel, until nothing remains butthe two rounded moldings.

In making moldings like Fig. 3, according to the usual practice, a stripof wood of the form shown in Fig. 4 is first made, and after its uppersurface has been enameled by passing it through the marcher-box, alongitudinal recess (shown by dotted lines) is cut in the back of thestrip, first by a planingmachine, and then by a hand-plane, untilnothing re- -mains but the two enameled strips, like that shown in Fig.3.

It will be observed that in neither of these cases can feed-rollers beused for passing the strips through the marcher-box without disturbingthe coats of enamel, on which the upper feed-roller must bear.

The main aim of my invention has been to so construct an enameling-boxand so form the strips of wood that feed-rollers may be employed to passthe strips through the reservoir containing the enameling composition.

For enameled moldings like Figs. 1 and 2, for instance, I prepare astrip of wood, Fig. 5,

with a groove, 00, above for receiving the upper feed-roller, and agroove, y, below for receiving the lower feed-roller, and then pass thestrip through an enameling-box of peculiar construction, so that therounded edges only are coated, and when these edges have received theproper number of ,coats I sever the strip, so as to produce either ofthe molding's, Figs. 1 and 2.

For making moldings like Fig. 3 I prepare a strip of the form shown byFig. 6, so that upper and lower feed-rollers may be used to force thestrip through the enameling-box.

After the edges of the strip have been properly enameled I sever it inthe middle, thereby producing two moldings like Fig. 8.

The box by which the enamel is applied to these strips is illustrated inthe vertical section, Fig. 8, and transverse vertical section, Fig. 9,of the accompanying drawing, the box being, in the present instance,arranged for enameling the strip, Fig. 5.

A and A are two plates, which are confined by suitable bolts to a, twobent plates, 1) 12, forming, under the circumstances explainedhereafter, two reservoirs, B B, for containing the fluid or semi-fluidenameling composition. The distance between the turned-up portion 2 ofone plate, I), and that of the other plate is equal to the width of thegroove 3! of the strip, Fig. 5. A permanent longitudinal bar, (1,extends from the platev A to the plate A, and to each side of this baris secured a plate, 6, of metal, the distance across the bar and its twoplates being equal to the width of the groove 00 of the strip, Fig. 5,against the edges of which groove the said plates bear.

In each of the plates A and A there is an opening, conforming in shapeand dimensions to that of the strip, Fig. 5, and these openings hearsuch relations to the turned-up edges of the plates 1) b and to the bard that the strip, when introduced into the box, will be in the positionshown in Fig. 9, so that no parts of the strip, excepting the roundededges, are exposed to the enameling composition. After thus passing theend of the strip of molding through the openings in the plates A A, thecomposition may be introduced into the reservoirs B B, for all avenuesfor the escape of the fluids are cut off by the strip itself.

Feed-rollers X X (shown in dotted lines) may be used for forcing stripafter strip through the enameling-box the said rollers in no wayinterfering with the different coatings of enamel, because they arenever in contact with the enameled surfaces.

In other words, the enameling-box is separated into two reservoirspartly by a permanent partition and partly by the strip, which is passedthrough the box so that the edges only of the strip are exposed to theenameling composition, one edge to the composition in one compartmentand the other edge to that in the other compartment.

WASHINGTON WALLIOK.

Witnesses HUBERT HowsoN, HARRY SMITH.

